package day03;

public class IfElseDemo {
    public static void main(String[] args) {
        double price=600.0;
        if (price>=500);else{
            price*=0.9;
        }
        System.out.println("最终结算金额为"+price);
        double score=85;
        if (score>=0 && score<=100){
            System.out.println(score+"是合法成绩");
        }else {
            System.out.println(score+"不是合法成绩");
        }


    }
}
